Magnitude of force experienced by the electron and direction of force

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Homework Help Overview

The problem involves an electron moving parallel to an infinitely long straight conductor carrying a current, with the goal of determining the magnitude and direction of the force experienced by the electron. The context is rooted in electromagnetism, particularly the interaction between moving charges and magnetic fields.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the need for geometrical information regarding the conductor and the distance of the electron from it. There are questions about the principles and equations that apply to calculating the force on a charge in a magnetic field, as well as the nature of the conductor itself.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem setup. Some guidance has been offered regarding the relevance of distance from the conductor and the implications of the conductor's geometry, but no consensus has been reached on the specifics of the situation.

Contextual Notes

There is uncertainty regarding the nature of the conductor, whether it is a wire or a flat plate, which affects the uniformity of the magnetic field. Participants are also considering the implications of the problem being suitable for an introductory course.

a.gracias
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An infinitely long straight conductor 'XY' is carrying a current of 5 Ampere. An electron moving with a speed of 10^5 m/s parallel to the conductor in air from A to B. Calculate the magnitude of force experienced by the electron and direction of force.

Pls help. Ur help will be greatly appreciated.
 
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a.gracias said:
An infinitely long straight conductor 'XY' is carrying a current of 5 Ampere. An electron moving with a speed of 10^5 m/s parallel to the conductor in air from A to B. Calculate the magnitude of force experienced by the electron and direction of force.

Pls help. Ur help will be greatly appreciated.
I think you will need to know the geometry of the conductor and the distance the electron is from the conductor.

Can you tell us what principles and equations apply here?

AM
 
You don't need any geometrical info on the wire, just the distance from the electron to the wire's center.

(The electron is specifically moving in air, not the conductor).
 
rude man said:
You don't need any geometrical info on the wire, just the distance from the electron to the wire's center.

(The electron is specifically moving in air, not the conductor).
It doesn't say that the conductor is a wire. What if it is a flat plate? The magnetic field is not uniform around the plate. So just knowing the distance from the centre is not enough.


AM
 
Do you know any equations that enable you to calculate the force on a charge in a magnetic field?
Do you know how to calculate the magnetic field due to a current in a conductor?
 
Andrew Mason said:
It doesn't say that the conductor is a wire. What if it is a flat plate? The magnetic field is not uniform around the plate. So just knowing the distance from the centre is not enough.


AM

That problem would be too difficult for an introductory course. I'm sure axial symmetry is implied.
Also, the conductor is described as "XY", again suggesting an infinitely thin wire.
 

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